What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano? gravity
water flow
expanding gases
convergent boundaries

Who is the current chief justice of the united states?

Which is the best description of how a scholarship differs from a federal education grant?

How did economics delay scientists' first attempts for conservation in each story? describe the political actions that led to successful conservation in both stories. i have them all done but these two. none of my teachers are responding and i just need . i can show both stories.